Improve Coverage

lib/active_model/serializer/adapter/base.rb

@@ -7,9 +7,11 @@ module ActiveModel
           deprecate :inherited, 'ActiveModelSerializers::Adapter::Base.'
         end
 
+        # :nocov:
         def initialize(serializer, options = {})
           super(ActiveModelSerializers::Adapter::Base.new(serializer, options))
         end
+        # :nocov:
       end
     end
   end

lib/active_model/serializer/belongs_to_reflection.rb

@@ -2,9 +2,6 @@ module ActiveModel
   class Serializer
     # @api private
     class BelongsToReflection < SingularReflection
-      def macro
-        :belongs_to
-      end
     end
   end
 end

lib/active_model/serializer/has_many_reflection.rb

@@ -2,9 +2,6 @@ module ActiveModel
   class Serializer
     # @api private
     class HasManyReflection < CollectionReflection
-      def macro
-        :has_many
-      end
     end
   end
 end

lib/active_model/serializer/has_one_reflection.rb

@@ -2,9 +2,6 @@ module ActiveModel
   class Serializer
     # @api private
     class HasOneReflection < SingularReflection
-      def macro
-        :has_one
-      end
     end
   end
 end

lib/active_model_serializers/adapter.rb

@@ -5,11 +5,13 @@ module ActiveModelSerializers
     private_constant :ADAPTER_MAP if defined?(private_constant)
 
     class << self # All methods are class functions
+      # :nocov:
       def new(*args)
         fail ArgumentError, 'Adapters inherit from Adapter::Base.' \
           "Adapter.new called with args: '#{args.inspect}', from" \
           "'caller[0]'."
       end
+      # :nocov:
 
       def configured_adapter
         lookup(ActiveModelSerializers.config.adapter)

lib/active_model_serializers/deserialization.rb

@@ -6,8 +6,10 @@ module ActiveModelSerializers
       Adapter::JsonApi::Deserialization.parse(*args)
     end
 
+    # :nocov:
     def jsonapi_parse!(*args)
       Adapter::JsonApi::Deserialization.parse!(*args)
     end
+    # :nocov:
   end
 end

lib/active_model_serializers/model.rb

@@ -38,6 +38,7 @@ module ActiveModelSerializers
     end
 
     # The following methods are needed to be minimally implemented for ActiveModel::Errors
+    # :nocov:
     def self.human_attribute_name(attr, _options = {})
       attr
     end
@@ -45,5 +46,6 @@ module ActiveModelSerializers
     def self.lookup_ancestors
       [self]
     end
+    # :nocov:
   end
 end

lib/active_model_serializers/railtie.rb

@@ -32,11 +32,13 @@ module ActiveModelSerializers
       end
     end
 
+    # :nocov:
     generators do |app|
       Rails::Generators.configure!(app.config.generators)
       Rails::Generators.hidden_namespaces.uniq!
       require 'generators/rails/resource_override'
     end
+    # :nocov:
 
     if Rails.env.test?
       ActionController::TestCase.send(:include, ActiveModelSerializers::Test::Schema)